I've got 75 - 100Ah batteries; I choose to use the word "small" also in respect to its physical size. It's a shade larger than one I have in my lawn mower.
Edit: Load shed comment - Pre-firmware patch due to cars LA monitoring and putting a load shed on the LV battery. This was the original issue post a Tesla Software patch.
Is this all solved? I doubt it. Firmware patches leave some room for adjustment. Can the BMS cope? Sounds like you're a no. I'm a leaning no as I just don't see a path past the internal monitoring to your point a Lead Acid != LifePo4. And you'll be in a never ending battle with software patches.
Even simple things like animated lights if you opt to buy them can be completely wiped out by a software update that changes the blinker intervals.
And a software update can render so many other things like a auto-frunk less useful - like not letting you hit "open" in the app anymore to close the frunk.
It's going to be fun times deviating with anything in a Tesla
Its all right in front of me:
View attachment 972770View attachment 972772
Is anyone with Ohmmu's latest V4+ BMS firmware and somewhat recent Tesla firmware actually seeing the replace 12V errors anymore? Or is just the concern that they'll likely pop up prematurely again eventually, or that you'll damage the car's PCS, or simply just too much headache over the LA behavior? I've been very tempted to try the V4+ I've had sitting in my garage since 2022, but I'm still not seeing any compelling reason to do so (except of course if my existing LA dies and I'm in a pinch to get another 12V in...)
